:root {
  --bg: #0e1117;
  --panel: #161b22;
  --panel-alt: #1f2732;
  --text: #f4f7fb;
  --muted: #9fb0c3;
  --primary: #2f81f7;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --emergency: #ff2a2a;
  --radius: 16px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: radial-gradient(circle at top, #111927, var(--bg));
  color: var(--text);
}
.container { padding: 1rem; max-width: 1200px; margin: 0 auto; }
h1, h2, h3 { margin: 0 0 0.7rem; }
.muted { color: var(--muted); }
.small-print { font-size: 0.9rem; margin: 0 0 0.6rem; }
.toggle-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}
.toggle-inline input { width: auto; }

.top-nav {
  display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap;
  background: #0b0f15; border-bottom: 1px solid #283546; padding: 0.7rem 1rem;
}
.top-nav nav a { color: var(--text); text-decoration: none; margin-right: 0.8rem; font-weight: 600; }
.brand { font-size: 1.3rem; font-weight: 700; }
.user-badge { margin-left: auto; color: var(--muted); }

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-alt));
  border: 1px solid #2a3748; border-radius: var(--radius);
  padding: 1rem; margin-bottom: 1rem;
}
.auth-card { max-width: 520px; margin: 8vh auto; }
.stack { display: grid; gap: 0.6rem; }
.row { display: flex; gap: 0.6rem; align-items: center; }
.spread { justify-content: space-between; }
.center { align-items: center; }
.wrap { flex-wrap: wrap; }
.grid-two { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 0.8rem; }
.grid-three { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.8rem; }
label { display: grid; gap: 0.3rem; color: var(--muted); font-weight: 600; }
input, select, textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #33465c;
  background: #0f1520;
  color: var(--text);
  padding: 0.65rem;
}

.btn {
  border: 0; border-radius: 12px; padding: 0.75rem 1rem;
  font-weight: 700; color: #fff; cursor: pointer;
}
.btn-primary { background: var(--primary); }
.btn-muted { background: #304055; }
.btn-danger { background: var(--danger); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.filter-btn.active { outline: 2px solid var(--primary); }

.banner {
  border-radius: 10px; padding: 0.65rem 0.8rem; margin: 0.6rem 0;
  font-weight: 700;
}
.banner-success { background: rgba(63,185,80,.2); border: 1px solid var(--success); }
.banner-danger { background: rgba(248,81,73,.2); border: 1px solid var(--danger); }
.modal {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.65);
  display: grid; place-items: center; z-index: 50;
}
.modal-card {
  width: min(560px, 94vw);
  background: #121a25;
  border: 1px solid #3a4d62;
  border-radius: 16px;
  padding: 1rem;
}
.connection-banner {
  position: sticky; top: 0; z-index: 10;
  padding: 0.7rem 1rem; background: #6f1010; font-weight: 800;
}
.hidden { display: none !important; }

.banner-ios {
  background: rgba(47, 129, 247, 0.15);
  border: 1px solid var(--primary);
  font-weight: 600;
  line-height: 1.45;
}
.ios-sound-btn {
  min-height: 48px;
  font-size: 1rem;
}

.alert-flash-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: rgba(200, 30, 30, 0.92);
  color: #fff;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 900;
  text-align: center;
  padding: 2rem;
  pointer-events: none;
}

.patient-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.7rem; }
.clock { font-size: 1.8rem; font-weight: 700; color: #d8ecff; }
.patient-grid {
  display: grid; gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.patient-btn {
  min-height: 120px; font-size: 1.6rem; border-radius: 22px; border: 2px solid transparent;
  color: white; font-weight: 800; cursor: pointer;
}
.patient-btn.help { background: #1574d4; }
.patient-btn.bathroom { background: #7b61ff; }
.patient-btn.pain { background: #d48806; }
.patient-btn.emergency {
  background: linear-gradient(135deg, #8e0f0f, var(--emergency));
  border-color: #ff8f8f;
  min-height: 140px; font-size: 2rem;
}
.patient-btn.test { background: #3a4d62; }
.confirmation h2 { font-size: 2rem; }

.alerts-list { display: grid; gap: 0.7rem; }
.alert-card {
  border: 1px solid #314155; border-radius: 14px; padding: 0.8rem;
  background: #0f1520;
}
.alert-card.active { border-left: 8px solid #2f81f7; }
.alert-card.acknowledged { border-left: 8px solid var(--warning); }
.alert-card.resolved { border-left: 8px solid var(--success); }
.alert-card.cancelled { border-left: 8px solid #6b7480; }
.alert-card.emergency {
  border-left: 8px solid var(--emergency);
  box-shadow: 0 0 0 1px rgba(255,42,42,.4), 0 0 24px rgba(255,42,42,.25);
}
.alert-card.escalated {
  animation: pulse 1.2s infinite;
}
@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 rgba(255,42,42,0); }
  50% { transform: scale(1.01); box-shadow: 0 0 20px rgba(255,42,42,0.4); }
  100% { transform: scale(1); box-shadow: 0 0 0 rgba(255,42,42,0); }
}

@media (max-width: 700px) {
  .container { padding: 0.7rem; }
  .patient-btn { min-height: 100px; font-size: 1.4rem; }
  .clock { font-size: 1.3rem; }
}